MOBILE-3833 DX: Update node version

.github/workflows/migration.yml

@@ -12,7 +12,7 @@ jobs:
     - name: Use Node.js
       uses: actions/setup-node@v1
       with:
-        node-version: '12.x'
+        node-version: '14.x'
     - run: npm ci
     - run: result=$(find src -type f -iname '*.html' -exec sh -c 'cat {} | tr "\n" " " | grep -Eo "class=\"[^\"]+\"[^>]+class=\"" ' \; | wc -l); test $result -eq 0
     - run: npm install -D @ionic/v4-migration-tslint

.github/workflows/testing.yml

@@ -12,7 +12,7 @@ jobs:
     - name: Use Node.js
       uses: actions/setup-node@v1
       with:
-        node-version: '12'
+        node-version: '14'
     - name: Install npm packages
       run: |
         npm install -g npm@7

.nvmrc

@@ -1 +1 @@
-12
+v14.15.0

.travis.yml

@@ -1,6 +1,6 @@
 os: linux
 dist: trusty
-node_js: 12
+node_js: 14
 
 git:
   depth: 3
@@ -18,7 +18,7 @@ cache:
     - $HOME/.android/build-cache
 
 before_install:
-  - nvm install 12
+  - nvm use
   - node --version
   - npm --version
   - nvm --version

package.json

@@ -173,7 +173,7 @@
     "typescript": "^3.9.9"
   },
   "engines": {
-    "node": ">=12.x"
+    "node": ">=14.15.0 <15"
   },
   "cordova": {
     "platforms": [